Add inline template option to generator

[joelhawksley]

Given that the --inline flag is already used, maybe --inline-template?

Originally posted by @Spone in #1781 (comment)

[Spone]

We can also wait for v4 and make it a breaking change:

• --inline would now generate an inline template
• --call (or --method, or --no-template?) would now generate a #call method
• the default would still be to generate a sibling file
• --sidecar would be unchanged and generate the template in a subdirectory

or we may want to change the default behavior?

[Spone]

Happy to start working on this for v4 if we reach a consensus on the naming suggested above.

[joelhawksley]

or we may want to change the default behavior?

I'm curious about this path. What do you think @BlakeWilliams @camertron @boardfish?

[BlakeWilliams]

I think keeping the current default makes sense, unless we see a ton of adoption of the inline templates.

[camertron]

Hmm... both in the code and in the docs, the word "inline" is used to mean a template string in the component, not a call method. IMHO it would be much clearer to repurpose the --inline flag to generate a component with a template string and introduce --call as the flag that generates a component with a call method. Obviously that's a breaking change and would have to be made in v4.

If we want to do this before v4, I would advocate for --inline-template as the flag that results in a component with an inline template string.

[reeganviljoen]

@camertron I think we should introduce this change with v4 as adding it to v3 only to remove it shortly after would be counter productive, we should add a warning to --inline that it will change in v4 as it stands though

[joelhawksley]

@reeganviljoen I guess it depends on how long we think it will be until v4 😄

[reeganviljoen]

@joelhawksley i feel like a year feels realistic, but maybe we should add a time line

[joelhawksley]

For something like a generator command line flag, I think we should just wait until the next major release if we think it's a year or so out ❤